#ifndef PIPPO
#define PIPPO
#endif

#ifdef PIPPO
If PIPPO is defined this part of text will be contained in
the output file
#endif

#ifdef PLUTO
If PLUTO is defined this part of text will be contained in
the output file
#endif

#ifdef __cplusplus
 Only if C++ compiler
#endif
	  /* Works only with newer compilers */

#if __cplusplus == 201103L
 We are compiling with a C++11 compliant compiler!
#endif

#if __cpusplus != 201103L
#error We need a c++11 compliant compiler
#endif
